Machine



Maf 8 R923., y 9 a C. M. F. FRU-DEN CALGULATING MACHINE FiledJun@ 8,19.20 2 shams-sheen 1 INVENTOR WITNESS ma@ A '1 u1 'OR NE YS May 8931923. l 154925375 M'. F. FREEN CALCULATNG MACHINE FiledIune 8, 1920 INVEN TOR cfff F Hap/@ffy B Y l 25 dises are i'ansmitted om 'blieApplication To all whom may @Ion/cem:

Be it known that l, CARL l subjeca of lie King ol: Sweden, L resident ofPiedmontfllamecln @oilily State of Qalioinia, lieve invented new anduseul lmprovemems iii @als ing 'Vlechines3 of which olie ollevs'invention is to speoicato'n. v ously fel-leasing Y The invention elateslo oelooia i iesowing them chimes of lie 'type embodying a ooseesesoiliei Miva'1 mechanism comprising rotatable e of whichu with elle andelates particularly to inea-iis 'n len/oth in *che ing and locking seiddiscs at l; sliall Gul/lime el during lie opemtioii of llie maoli'oelThe invention ielates lo caio ,J niines of the ype embodying *seo puy-3mg Wheels oi @lis-2S lievi l n said'klewi ble teeth, vaifieble as to liemen of mi* '3 lively projectecl and els@ o dises arianged'oi fallejus'mena oi' romion of r on tlie counfimg Wheels me l moved out of'operating values edjuserfl' @Yank handle indirectly by mediate Wheels,$0 the ifigue elise egisteing .meChmuis.a The mechanism is usuallydispose() displaoeable elaion to alle oo :mism exis., foi' 'Ehe purposeof sible the direct action of the mi e eee. "wheels of the figure discso; The teeth operatively piojeee @climbing (liso Contact with :md joie@ineimediafae Wheel which iff 5e-tion to the ligure discs o; o omechanism, Each figure (lise io piovided with e Spring-pressed el enlsmto @Fevent oveithiowiiig of iid pi'opely position dise ai; heemliy alleiiiteimefiiay Se detem mechanisms lieve rotalioi of iguie dises so thatable '2eme is Pequied to loe emol?. when e plurality of @l fieouslyoe/ed and lieve iieiey in opemiom.

i om poils i. disclose 'die @enst L e (l is pe pee e View on .fea` seeleel' z; oef'ziezi meenmismq calco ises e siiibable u 2 of soun' g 7 Wliimimi; @lorie oslieii' mobilio@ @ion is eesg.' moiseless `wheels. Thecams are provided with projecting so that they may be readily movedcircumferentially to vary the number of projecting teeth.

Arranged on the frame adjacent the counting `toothed wheels, andparallel tov the axis thereof, are one or more series of ligure discs 7,in the present instance onlyv one series beinfy shown for the purpose ofsiniplieitIy. rfhe values adjustedl on the toothed whec s aretransferred to the figure discs 7 ithrough the interposed toothed wheels9 which mesh with toothed wheels 12, formed on or secured to the figurediscs 7; The ligure discs are suitably connected by tens carryinmechanism, to cause the rotation of one dise through a complete rev-`elution to advance the disc of the next higher denomination one point. Asuitable mechanism for this purpose is shown inmy copendin a D'plicationSerial No. 375,689, filed in tie atent Oice on April 22, 1920.

The figure discs, with their associated transfer levers, intermediatetoothed wheels and attached toothed wheels, are preferably mounted in adisplaccable carriage 14 for the purpose set forth. The figure discs 7are mounted on a shaft 15 journaled in the carriage. The intermediatewheels 9, which are in mesh with the toothed wheels 12 secured to thefigure discs, are journaled on the shaft 17 and lie in position to beengaged and rotated by the projected teeth 5 on the counting wheels.

Bearing in the carriage and disposed in parallel relation to the othershafts therein 1s a rock shaft 18 'on which is journaled a plurality ofbent levers 19, each lever'having a curved or rounded head 21 contiguousto an intermediate toothed wheel 9, there being a lever associated witheach wheel. The head lies adjacent the intermediate toothed wheel in thezone of engagement of the projected teeth 5 with the wheel, and thelever is normally held in such position that the outer or curved face ofthe head lies in the circle of the ends of the teeth on the wheel. Theprojected teeth on the counting discs are sufficiently wide to engageboth the intermediate toothed wheel and the contig nous lever head, sothat when a disc with projected teeth is rotated, the projected teethsimultaneously engage the head 21 and depress it and engage and rotatethe toothed wheel.

At its lower end, the lever engages a pin 23 /secured to avslide ordetent 24 which is disposed radially with respect to the axis of thefigure discs 7, and which is normally held in engagement with thetoothed wheel 12, by a spring 25. The detent is provided on its end witha tooth 26 which seats between two teeth of the' wheel 12, holding the.wheel against rotation. When the head the lever is pressed down. by theprojecten teeth on the counting wheel, the detent is withdrawn from thetooth wheel 12, permitting the figure disc to be freely rotated by theengagement of the projected teeth with the intermediate wheel.

A detent is provided for each figure disc and ythe plurality of detents,each of which is engaged by a lever, are slidably mounted in the bar 27.The bar 27 is slidably mounted in the carriage, to be moved parallel tothe line of movement of the detents, so that all of the detents may besimultaneously disengaged from the toothed wheels 12 to permit thefigure discs to be freely reset to zero. Connected to the bar 27 atopposite ends are levers 28, which are secured to the rock shaft 1S, andmeans are provided for rocking the shaft to move the bar. Secured to therock shaft is a lever 29 projecting to the front of the carriage andcarryin on its end a key 31 which, when depresse disengages the detentsfrom the toothed .wheels 12 so that the figure discs may be reset tozero.

In the present construction, means are provided whereby the depressionof the key not only frees the figure discs, but also rotates them tozero. The figure discs are frictionally mounted on the shaft 15 in suchmanner that, with the detents withdrawn, the discs ma be rotatedeitherby the intermediate toothed wheels or by rotation of the shaft 15. Theshaft is provided on its surface adjacent one end with a ratchet 32which is engaged by a springllpressed pawl 33 pivoted to the gear 34.eshing with the gear 34 is a rack 35 which is pivotally attached to thelever 29, by a slip 'oint, so that the lever 29 may be depree a suicientdistance to withdraw the detents from the toothed wheelsl12 before therack is moved. Further depression of the rack causes the shaft to berotated to brin the figure discs to zero. Secured to each gure disc onthe side opposite thetoothed wheel 12 is a projection 36 which o ratesto movi` the transfer lever 37, the ead of whit` normally lies in thepath of the projectif,l and`v when the projection is in contact i thetransfer lever, the figure wheel is set at zero. As the shaft isrotated, the figure wheels are rotated until the projections contactwith the transfer levers, at which time rotation of the figure discceases, even though the shaft ma continue to rotate. A spring 38 isprovi ed for returning the key to raised position when it is releasedand, due to the presence of the pawl and ratchet, the upward movement ofthe rack does not cause rotation of the shaft, so that the figure discsretain their zero setting.

I claim:

1. In a calculating machine, a plurality of rotatable counting wheelshaving adj ustabl. teeth, registering mechanism including s.

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